Home / 258,067.30-387,104.85-89,592.98

Finding the Fourth Proportional to 258,067.30, 387,104.85 and 89,592.98

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Solution

The fourth proportional to 258,067.30, 387,104.85 and 89,592.98 is: 134,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,067.30 : 387,104.85 = 89,592.98 : x
  2. Step 2: Convert to fraction form
    258,067.30/387,104.85 = 89,592.98/x
  3. Step 3: Cross multiply
    258,067.30x = 387,104.85 × 89,592.98
  4. Step 4: Simplify right side
    258,067.30x = 34,681,877,083.95
  5. Step 5: Solve for x
    x = 34,681,877,083.95/258,067.30
  6. Step 6: Final answer
    x = 134,390.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.